lines: Fix parsing of Windows-style SMB playlists
lines: Fix parsing of Windows-style SMB playlists

We were computing a new gvfs-style URI to replace the "\\server\" format
Windows uses, but we weren't using the results.

pwithnall/totem-pl-parser,pwithnall/totem-pl-parser,MathieuDuponchelle/totem-pl-parser,MathieuDuponchelle/totem-pl-parser,MathieuDuponchelle/totem-pl-parser,MathieuDuponchelle/totem-pl-parser